# Nightscouter vs Diabetes Diary Plus

The clearest difference is rating: Diabetes Diary Plus at 4.2 against Nightscouter's 2.0. Diabetes Diary Plus also leads on review sentiment (50% vs 20%) and update cadence (every 4 weeks vs every 5 months). Nightscouter's advantage is in-app purchases (none vs 2) and device support (4 vs 2). On price, ratings volume and ads there is nothing between them.

Both are free to download. Diabetes Diary Plus sells 2 in-app purchases, starting at $3.99 per month. Nightscouter asks for nothing beyond the download.

Diabetes Diary Plus holds the better App Store score, 4.2 against 2.0. Both are backed by a comparable volume of ratings — 9 and 10 respectively. Written reviews point the same way: 20% of Nightscouter's written reviews are positive against 50% of Diabetes Diary Plus's.

Nightscouter ships an update every 5 months, Diabetes Diary Plus every 4 weeks. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Nightscouter | Diabetes Diary Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (9 ratings)](https://appshunter.io/ios/app/nightscouter/id1010503247/reviews) | **[4.2 (10 ratings)](https://appshunter.io/ios/app/diabetes-diary-plus/id1662275049/reviews)** |
| Number of ratings | 9 | **10** |
| Positive reviews | 20.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Monetization | **Free** | Freemium |
| Size | 7 MB | 26 MB |
| Requires iOS | **13.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Peter Ina](https://appshunter.io/developer/1010503246) | [Marco Krapf](https://appshunter.io/developer/617412346) |

## What reviewers say

### Nightscouter

[App page](https://appshunter.io/ios/app/nightscouter/id1010503247)

This app allows iOS users to view Continuous Glucose Monitoring (CGM) data from Nightscout-enabled websites directly on their devices. It provides a convenient way to access important health information.

**Highlights:** View CGM data, Connects to Nightscout websites, iOS device compatibility, Supports Apple Watch

**Features:** macOS Compatibility

**In-app purchases:** none


### Diabetes Diary Plus

[App page](https://appshunter.io/ios/app/diabetes-diary-plus/id1662275049)

Manage your diabetes with this comprehensive tracker. Log blood sugar, insulin, and meals, view trends with charts, and sync with Apple Health. Features include injection reminders, customizable fields, and data export for doctor visits.

**Highlights:** Blood sugar and insulin logging, Interactive glucose trend charts, Apple Health and Apple Watch integration, Injection reminders and timers, Customizable data fields, Data export to Excel, PDF, CSV, HbA1c estimation

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Monthly | $3.99 | per month |
| Premium - Annual | $24.99 | per year |


## Frequently asked questions

### Is Nightscouter free?

Nightscouter is free to download, with no in-app purchases.

### Is Diabetes Diary Plus free?

Diabetes Diary Plus is free to download, with in-app purchases available.

### Which has better reviews, Nightscouter or Diabetes Diary Plus?

Diabetes Diary Plus is rated higher. Nightscouter averages 2.0 out of 5 from 9 ratings, while Diabetes Diary Plus averages 4.2 from 10 ratings.

### Do Nightscouter or Diabetes Diary Plus have ads?

Neither Nightscouter nor Diabetes Diary Plus shows ads.

### Which is updated more often, Nightscouter or Diabetes Diary Plus?

Nightscouter ships an update every 5 months, and Diabetes Diary Plus every 4 weeks. Most recently, Nightscouter was updated on October 2, 2026 and Diabetes Diary Plus on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*